seunionns sissey slleys iewleH eoueejo ebewep y6iy peol jeixeig sleued penuno 'xeldwo selyoud WV st:6Z:ZI I10Z 'ZZ Krenuur 'Kopnes (6uIeam eas)Bu!ssald WIy ejnjons 6u!peol jeeys jepun osje speol jeeys Jepun osje abewep ol elnxel eunjonJis UBAOM 号 peniuy panluy 53Table 2.2. Textile structural composites: an overview Textile Mechanical properties Composite manufacturing Typical structural elements Typical applications structure 3-D High stiffness and strength RTM Slightly curved panels under Cell-skin elements woven only in 0° and 90° Pressing (thermoplast and biaxial load Fitting elements directions thermoset, film and prepreg) Sandwich-panels Body-in-white structures Very high damage tolerance Limited drapeability Simply shaped profiles Chassis structures 3-D High stiffness and strength RTM Complex, open and closed Stiffening elements braided above all in 0° direction Pressing (see weaving) profiles Chassis structures High structural integrity of Pultrusion (profiles) Flat panels with limited Spaceframe elements complex profiles High deformability cross-section Knitted High stiffness and strength RTM Knot-elements Spaceframe elements (weft) only in fill-fibre direction Pressing (see weavings) Complex, curved panels Helmet shells High energy absorption Very good drapeability with limited stiffness and Cladding element with High structural integrity Minimum waste strength high damage tolerance Knitted High stiffness and strength RTM Flat and curved panels Cell-skin elements (warp) also under shear loading Pressing (see weaving) under biaxial load Fitting elements 45° fibres in roll direction Curved sandwich-panels Body-in-white structures Chassis elements Embroidered High stiffness and strength RTM Local reinforcement Rotor-blade joining element also under shear loads Pressing (see weaving) Load-introduction and load- Inspection-hole cover (for example, load No waste of embroidery fibre transmission elements introduction) Stitched High damage tolerance RTM Stiffened panels consisting Highly integrated panels for High structural integrity Pressing (see weaving) of woven or knitted flat cell structures Reduction of in-plane Complex moulds for complex panels with braided Complex fittings properties possible due structure profiles to damage Complex 3-D structures 53 RIC2 7/10/99 7:25 PM Page 53 Copyrighted Material downloaded from Woodhead Publishing Online Delivered by http://woodhead.metapress.com Hong Kong Polytechnic University (714-57-975) Saturday, January 22, 2011 12:29:45 AM IP Address: 158.132.122.9